v1.6.0

This release adds beta support for VCDIFF delta updates. This makes it possible
to significantly reduce firmware update sizes if you know the firmware version
running on the device. See the README.md for details.

IMPORTANT: If you were using fwup's sparse file support, the skip-holes
option now defaults to false. You must set skip-holes=true for any resources
that should be scanned. Since this is an optimization, nothing should break, but
it will be slower. This will affect firmware that writes large and empty ext2/4
filesystems (and similar). Most known fwup usage is unaffected. The default
was changed since skip-holes could cause confusion and it was incompatible
with delta updates.

• Improvements

  • VCDIFF support using xdelta3
  • Progress bar now shows bytes in
  • Updated to FatFS R0.14

• Bug fixes

  • Refactor firmware archive validation logic to more closely match firmware
    update code to avoid false failures due to differences in ZIP file
    processing